Improvement in apparatus for sealing cans



H.Y WILDEY. SBALTNG ATTACHMENT TOR AIR PUMPS.

No. 30,440. Patented Oct. 16, 1860.

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HENRY Y. WILDEY, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN APPARATUS FOR SEALING CANS. l

Specification forming part of Letters Patent No. 30,440. dated October 16, 1860.

To @ZZ whom'it may concern:

Be it known that I, HENRY Y. WILDEY, of the city and county of Philadelphia, and State of Pennsylvania, vhave invented a new and useful sealing attach-ment to air-pumps for exhausti ng preserve-.vessels and other vessels in which a vacuum .is desired; and I do hereby declare that the following'is a full, clear, and exact description of the same, reference being ha to the accompanying drawing,l forming pa t of this specification, said drawing representing a central section of an air-pump with my attachment, and illustrating its application to a preservejar.

To enable others to make and use my invention, I'will proceed to describe its construction and operation.

A represents the barrel of the airpump.

B is the suction-pipe, bent at a'right angle to the barrel, and having attached to its extremity the straight socket C, which occupies a position parallel Wit-h the barrel, at such a distance therefrom as to a'ord convenience of 4aperture a of the vessel E, which is tobe exhausted. In the 'example represented the socket is made with a female screw in its interior to screw tightly onto a male screw Von the exterior of a nipple, b, through which the exhaust-aperture is made, such nipple being,

formed upon the stopper orl cover of the vessel. The sealing-plunger has its upper part made cylindrical to fit a stuffing-box, c, that is provided'at the yupper end of the socket C, and it has on its exterior below such cyiindrical portion a screw-thread, d, to t a female screw-thread in the socket C, and has a knob, e, at the top to constitute a handle by which to turn it to screw it up or down.

Instead of having the screw-thread d to fit the corresponding female screw-thread in the socket, the plunger may have a lever applied to its upper end to work it. The lower part of the plunger is made smaller than the lower part of the interior of the socket toleave-room for the passage of air around it to the suctionpipe B. y A

F is the piston of the air-pump tted'with a valve, G.

His the inlet-valve, applied at the connection of the suction-pipe, and Iis the deliveryvalve tted to the head J.

The mode of using the pump is as follows: The plunger D is first screwed or forced down in the socket C far enough to present itslower end through the Y bottom of. the said socket, and the necessary quantity of wax is applied in the form of a pellet to fill and project from the cavity f. The said plunger is then screwed or drawn up again farenough within the socket G to permit the latter to bescrewed on tothe nipple b, or otherwise suitably applied to the aperture a with a suitable space between the sealing material and the mouth ofthe said aperture, and all is ready for exhaustion by working the pump-plunger F." When all the air has been exhausted, and while the pump still remains attached tothe vessel by the socket C, thelsealing-plun'ger D is screwed or l otherwise moved down inthe socket to press the wax upon the mouth of the aperture a.

'The socket is then` removed from the nipple or aperture to detach the pump, leaving the aperture sealed. i

What I claim as my invention, and desire to secure by Letters Patent', is

The arrangement of the socket Gand screw-f 'plunger D with the nipple b and air-pump A, as herein shown and described, so that when the air has been exhausted from the can by the pump, the plunger D may be screwed down Witnesses:

J oHN CLOUDS, -ROBERT CLoUDs. 

